IS 2527: Code of practice for fixing rainwater gutters and downpipes for roof drainage

****************

Disclosure to Promote the Right To Information

Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.

Mazdoor Kisan Shakti Sangathan
"The Right to Information, The Right to Live''

IS 2527 (1984) : Code of practice for fixing rainwater
gutters and downpipes for roof drainage [CED 13: Building
Construction Practices including Painting, Varnishing and
Allied Finishing]

Jawaharlal Nehru
'Step Out From the Old to the New"

aj^&vi f 7ui^s:y%K^ isb^^ni^seg

:<>5&i| mT'5K^5?::5:^>^i»l

K^^^iXSVCd^

Satyanarayan Gangaram Pitroda
Invent a New India Using Knowledge

Bhartrhari — Nitisatakam
''Knowledge is such a treasure which cannot be stolen"

^'^^^r

k

BLANK PAGE

^*-^^^

PROTECTED BY COPYRIGHT

IS:1S27 1984

( Reaffirmed 2000 )

Indian Standard

CODE OF PRACTICE FOR
FIXING RAINWATER GUTTERS AND

DOWNPfPES FOR ROOF DRAINAGE

( First Revision )

First Reprint SEFTEMBER 1S&6

UIDC 6g6,iaif0O6.76

© Copyright 1 9 04
INDIAN STANDARDS INSTITUTION

^rvV^K ftH>V\>:, ^ BAHADUK SHAH ZAFAR \T ARC.

^' ^ Sepumft^t 1984

IS : 2527 - 1984

Indian Standard

CODE OF PRACTICE FOR

FIXING RAINWATER GUTTERS AND

DOWNPIPES FOR ROOF DRAINAGE

( First Revision)

Building Construction Practices Sectional Committee, BDC 13

Chamnan

Shri C. p. Malik
C-4/38, Safdarjung Development Area,
New Delhi-1 10016

Members Representing

Shbi p. D. Aoabwal Public Works Department, Government of Uttar

* Pradesh, Lucknow
Shbi R. K. Mathur ( Alternate )
Shbi D. R. Batlxvai«a Bhabha Atomic Research Centre, Bombay

Sa&i B. K. Ghakbabobty Housins and Urban Development Corporation

Ltd, New Delhi
Shri S. M. Gobl ( Alternate )
Chief Enoinekb ( Blixjs ) Public Works Department, Government of

Tamil Nadu^ Madras

SUPBBINTBSrDINO EvOlNEEa

( Special BtriLDiNG Circle ) ( Alternate )
Chiet ENGiNEEH-ctJM-AoDiTiONAL Publlc Works Department, Government of
Sbcrbtary ( B and R ) Rajasthan, Jaipur

EXBCTJTiVK Ekoineer ( Alternate )
Chiet Engineer ( Train ino ) Central Public Works Department, New Delhi

SUPEBINTENDINO EnOTNEEB

( Tbainino ) ( Alternate )
Shbi K. Devarajak Engineer-in-Chief's Branch, Army Headquarters,

New Delhi
Shbi A. V. Gopalkbishka ( Alternate )
Dibxotob, Abchitectttbe Research, Designs and Standards Organiaeation

( Ministry of Railways ), Lucknow
Joint Dibbotob, Abchiteo-
TtJBB {Alternate )

( Coniimuel •n page 2 )

^Copsnnhi 1984

INDIAN STANDARDS INSTITUTION

This publicatioii is protected under the Indian Capyrig/U Aet ( XIV of 1957 ) and

rcproduetloB ftk whole or in part by any means except with written permission of the

publisher shall be deemed to be an infringement of copyright under the said Act.

IS t 2527 - 1984

( Continued from page 1 )

Members Representing

Shbi S. S. Gilt. Public Works Department, Governmem of

Punjab, Chandigarh
Shri M. Kabtikayan Builders* Association of India, Bombay

Shui R. L, Kumar Institution of Surveyors, New Delhi

Shri V. G. Patvvabdhan ( Alterndte )
Shri M. Z. Kxtrikk Tata Consulting Engineers, Bombay

Shri G. K. Majumdab Hindustan Prefab Ltd, New Delhi

Shbi H. S. Pasbicha ( Alternate )
ShriR. G. Mangal Central Building Research Institute ( CSIR ),

Roorkee

Shbi J. S. Shabma ( Alternate )
Shbi B. V, B. Pai Concrete Association of India, Bombay

Shbi P. Sbinivasan ( Alternate)
Shbi P. K. Pandarb State Bank of India, Bombay

Shbi K. S. Pbtjthi Forest Research Institute and Colleger, Dehra

Dun
Shbi S. G. Ranadive Indian Institute of Architects, Bombay

Shbi Rummy SHRorr ( Alternate )
Rbprbsentative Bureau of Public EnterpriseSs Mmistry of

Finance
Refbesentative Central Road Research Institute, New Delhi

Representative Life Insurance Corporation of India, Bombay

Shbi K. S. Sbinivasan National Buildings Organization, New Delhi

Deputy Director ( Alternate )
Shri Sushil Kumab National Buildings Construction Corporation Ltd,

New Delhi
Shri S. R. Tambe Public Works & Housing Department, Bombay

Shbi B. T. Unwalla The Institution of Engineers ( India), Calcutta

Shri G. Venkatesulu Ministry of Shipping and Transport ( Roadi

Wing), New Delhi

Shri M, V. Sastby ( Alternate)
Shri G. Raman, Director General, ISI ( Ex-officio Member)

Director ( Civ Engg )

Secretary

Shri A. K. Saini
Assistant Director ( Civ Engg ), ISI

Covering, Veneering and Glazing Subcommittee, BDC 13 : 10

Convener
Shr: J. R. Bhalla Indian Institute of Architects, Bombay

Members
Architect, PWD Public Works and Housing Department, Govern-

ment of Maharashtra, Bombay
Shbi S. R. Vaidya ( Alternate )

( Continued on page 15 )

IS : 2527 - 1984

Indian Standard

CODE OF PRACTICE FOR

FIXING RAINWATER GUTTERS AND

DOWNPIPES FOR ROOF DRAINAGE

( First Revision )

0. FOREWORD

0,1 This Indian Standard ( First Revision ) was adopted by the Indian
Standards Institution on 14 March 1984, after the draft finalized by
the Building Construction Practices Sectional Committee had been
approved by the Civil Engineering Division Council.

0,2 Rainwater gutters and downpipes are essential for prompt removal of
incident rainfall on the roof. Efficient roof drainage is an important pre-
requisite for the economic maintenance of a building. Installation of
rainwater gutters and pipes require careful attention to their capacity,
position and alignment, water-tightness, accommodation for expansion,
firmness of support, etc. This standard is intended to give guidance with
regard to these details of work.

0.2.1 This standard was first published in 1963, This is being revised
to update the methods being followed for installation and efficient func-
tioning of rainwater gutters and pipes. In this revision the use of in situ
concrete gutters has been discontinued since they are normally not used.
Further the fixing details of different types of gutters and pipes has been
dealt in detail. The sizing of rainwater pipes has been modified.

0,3 For the purpose of deciding whether a particular requirement of
this standard is complied with, the final value, observed or calculated,
expressing the result of a test or analysis, shall be rounded off in accordance
with IS: 2-1960*. The number of significant places retained in the
rounded off value should be the same as that of the specified value in
this standard.

1. SCOPE

1.1 This standard covers the constructional details of rainwater gutters
and downpipes and their fittings for roof drainage.

*Rulei for rounding ofif numerical values ( rit/iu^),

3

IS : 2527 - 1984

2. MATERIALS

2,1 Rain-Water Pipes and Fittings — These shall conform to
IS : 1230-1979* or IS : ^^26 ( Part 1 )-1960t or IS : 1239 ( Part I )-1979{.

2.1.1 Downpipes shall be of cylindrical shape, unless otherwise specified.

2.1.2 Rainwater gutters may also be constructed in concrete which is
lined usually wi|h bituminous material or with burnt clay products.
Gutters may also be made of galvanized iron sheets tiot less than 1*25 mm
in thickness and shall conform to IS : 277-1977§. The gutters shall be
seipicircular in section with a width at top about twice the diameter of
the downpipe ( see Fig. 1 ).

-MAIN PAFTER

POOF COVERING

BITUMINOUS
WATER PROOF !NQ

CONCRETfc GUTTER

Fio. 1 Typical Details of Concrete Gutter for Slopbd Roof

♦Specification for cast iron rainwater pipes and Sittings ( seeondrmsion ),

tSp"cification for asbestos cement building pip«s and pipe fittings, gutters and gutter
fittingi and roofing fittings: Part 1 Pipes and pipe fittings (Jirst mdsion).

^Specification for mild siecl tubes, tubular and other vrrought steel fittings: Part 1
Mild stt-el tubts {fourth revision ).

(Specificatioa for galvanized steel sheets ( plain and corrugated ) ( thkittMon ).

IS t 2527 - 1984
2.2 Stays for Sheet Metal Gutters

2.2.1 Stays shall consist of metal tubes or other equivalent distance-
pieces or may be an integral part of the supporting bracket, provided that
the gutters is adequately reinforced to withstand all normal conditions
of use. The size of stays shall not be less than the following values, and
alternative designs shall be of equivalent strength:

a) For nominal size of gutter 12 mm diameter tube of thickness
less than 120 mm not less than that of the gutter

b) For nominal size of gutter 16 mm diameter tube of thickness
above 120 mm not less than that of the gutter

2.2.2 Stays forming part of the supporting bracket shall be of such
design that the assembly of bracket and stay is securely fixed in position.
In all cases, the position of the stay shall be such as to interfere as little
as practicable with the effective capacity of the gutter-
s' NECESSARY INFORMATION

3«1 for the efficient planning and installation of rainwater pipes and
gutters^ detailed information with regard to the following is necessary:

a) The maxium intensity of rainfall for which the roof drainage
system is to be designed; and

b) Local bye-laws, if any, governing house drainage, which will
affect the design and installations of rainwater pipes and gutters.

3.2 All information as in 3»1 shall be made available to those who are
responsible for fixing rainwater pipes and gutters. Necessary drawings
and instructions shall also be furnished.

4. STORAGE AND HANDLING OF MATERIALS

4.1 The storage and handling of gutters and pipes shall be done in
accordance with IS : 4082- 1977*,

5. DESIGN CONSIDERATIONS

5.1 Generml — The roof of a building shall be so designed, constructed
and framed as to permit effectual drainage of the rainwater by sufficient
number of pipes and gutters of adequate size, so arranged, jointed and
fixed as to ensure quick carriage of rainwater away from the roof
without causing dampness.

^^R^eommendatioM on stoddof and storage of comtructloa materials At lite {fitsi

IS I 2527 - 1984

5.1.1 Capacity — The gutters of downpipes shall have sufficient cross-
sectional area and slope to ensure collection and removal of water even in
the case of the heaviest rainfall without risk of dangerous accumulation.
The orientation of the building and the exposure of the site may also
affect the quantity of rainfall which the roof receives and so attention
should also be paid to such factors.

5*2 Rainwater Gutters

5,2.1 Slope — The slope for the roof gutters shall normally be not less
than 1 in 150.

5»2.2 Flow Capacity — The flow capacities for gutters with the minimum
slope stated in 5.2.1 and with outlet at one end will be as given in
Table 1.

TABLE 1 FLOW GAPAGITIES FOR LEVEL GUTTERS
WITH OUTLET AT ONE END

SizK Flow in Litres peb MiKtrTB in Vabxotts Types of Guttkhs

Sheet Steel
or Asbestos
Cement — Half
Round

Cast Iron— Half

Round

Sheet Steel

or Asbestos

Cement — Ogee

Cast Iron —
Ogee

0)

(2)

(3)

(4)

(5)

mm
75

35

25

—

100

70

55

90

75

115

95

70

125

115

125

125

90

150

145

150

195

150

240

220

5.2.3L1 Effect of bends — Where gutters have bends, the flow capacity
will be reduced* In the case of right-angled bend the reduction of flow
capacity will be about 25 percent*

5.2«2«2 Effect of outlets and downpipes — The shape, size and position of
the outlet and downpipe will affect the flow capacity of the gutter.
Round-cornered outlet will give a smoother flow than sharp-cornered ones.
The position of the outlet will also affect the flow capacity of the gutter
but in deciding the location of the outlet, several factors, such as ease of
connection to the disposal system and the appearancei have also to be
considered* When the outlet is placed centrally in the length of a gutter,
capacity required will be one-half of that needed for an end-outlet.

IS: 2527 -1984

5»2«2«3 Effect of roof edge in discharging the water into the gutter — The
manner in which the water leaves the edge of a roof varies with the kind
of roof covering used, and this will influence the location at which the
gutters shall be fixed. Where, as for instance in a slate roof, the water
leaves the edge with very little spread to front or rear, the position of the
gutter may be centrally under the edge, on the other hand where the
water leaves the edge with a wide spread; such as in the case of clay
pantiles ( with sharp upper corner to the edge ), the gutter shall be close
to the edge with its centre slightly forward to the under edge of the roof.
Where the lower corner of the roof edge is rounded, the water may be
deflected more to the rear, and the centre of the gutter may preferably
also than be placed slightly to the rear. The most satisfactory roof edge
will be one with the upper corner round and the lower corner sharp.

5,3 Sizes of Rainwater Pipes

5.3.1 The sizes of downpipes suitable for variable gutters shall be as
given in Table 2 with a variation of ± 5 mm.

TABLE 2 SIZES OF DOWNPIPES SUITABLE FOR VARIOUS

SIZES OR HALF-ROUND GUTTERS

SlZlB<

OF

Sizs

or PiPB

C*TTvn*^

----*-,,

wuf xr

t ■ "■ "■■ "

For Sharp Cornered Outlet

For Round Cornered Outlet
-«. >^.

With outlet

With outlet

With outlet

With outlet

at one end

at any inter-
mediate po-
sition in the
length of
pipe

at one end

at any inter-
mediate po-
sition in the
length of
pipe

mm

mm

mm

mm

mm

75

50

50

50

50

100

65

65

50

50

115

65

75

50

65

125

75

90

65

75

150

90

100

75

100

NOTB-

- Sizes other than those specified in i

the table may be adopted, if specific

calculations for flow prove their tuttability.

5«3.2 Rainwater Pipe — Sizes of rainwater pipes shall be in accordance
with Table 3.

5.3.3 The pipes shall be so designed at to give a velocity of flow not
lets than 1 m/s where running half full. The maximum velocity shall not
exceed 2*5 mjft.

IS : 2527 -

1984

TABLE 3 SIZES OF RAINWATER PIPES FOR ROOF DRAINAGE

Sl Dta of Pipe

Average Rate ow Rainfall

IN mm/h

No.

mm

50

75

100 125
Roof Areas, m«

150

200

i)

50

134

«'7

6-6 5-3

4-4

3-3

")

65

24- 1

160

120 9-6

8*0

60

iii)

75

40-8

270

20-4 16-3

13-6

10-2

iv)

100

85-4

57-0

42-7 34-2

28-5

21-3

V)

125

—

_

80-5 64-3

53-5

400

vi)

150

—

—

— —

83-6

627

5.3.4 A bell mouth inlet at the roof surface it found to gives better
drainage effect provided proper slopes are given to the roof surface. The
spacing of pipes depends on the position of windows and openings but
6 m apart is a reasonable distance.

5.4 Wmtcr-Tightnesft — All junctions and joints shall be thoroughly
water-tight, riveted, belted and soldered. Joints between successive
length of gutters shall have an overlap of at least 50 mm. The drop
in the overlap of the gutter shall always be in the direction of the fall.
Ends of guttering shall be closed with galvanized sheets not less than
1*215 mm in thickness to fit the section and made water-tight.

Junctions with downwater pipes shall be made water-tight.

5.5 Strength and Stability

5.5.1 Gutters if located at the exterior like the eaves and roof edges
will be subject to high wind velocities. The effect of zones of very low
pressure for certain angles of incidence of the wind shall^ therefore be
taken into account in the design and reference may be made to IS : 875-
1964*. Gutters shall be fixed 25 mm below the edges of the roof supported
with brackets at about I '25 m intervals. Roof gutters if required may
also be designed for occasional live loads which are likely to occur during
erection and other operations.

5.6 Allowance for Expnnsion of Shrinkage

5.6.1 Variations in temperature, and for materials other than metal,
differences in relative humidity^ will cause linear changes resulting in
displacements of gutters and pipes in relation to the building, and necessary
allowance shall be made for free expansion to prevent any undue stresses
in them 6r blistering and cracking of the outer finish.

*Code of practice Tor itnictural ufety of buildings: Loading standards (rratfrW).

8

ISt2527-liM

5.6.L1 Provision made for expansion of gutters {see 5.6.L2 ) shall
accommodate their linear changes. Where the expansion accommodated
is less than 20 mm. the length of the gutter between the expansion joints
shall not exceed 30 m for sheet steel, asbestos cement or cast iron gutters.

5,6,1=2 The expansion devices for gutters may be provided as follows:

a) For sheet metal gutters the expansion joints shall be
provided as in Fig, 2;

^

2A FREE END

2B FIXED END

a

?c

-^

^i^

hfr]

2D

SOLDERED-. j

ENLARGED
SECTION XX

DETAILED VIEW OF 2D

Fig. 2 i ypical Details of Expansion Joint for Sheet Metal

Gutter Lining

IS s 2527 - 1984

b) For bituminous lining over wooden or similar backing,
joint shall also be provided fqr lateral expansion as in
Fig. 3; and

c) For concrete gutters expansion joints shall be provided in
the same manner as for reinforced concrete slabs.

BtTUMNOUS

LNING

-WOOOeN OR SIMILAR
GUTTER BACKING

GUTTER
BACK»4G

Fig. 3 Typical Details for Accommodation of Lateral
Expansion in Flexible LiifrtNG in Gutters

6. PROGRAMMING OF THE WORK

6.1 The rainwater pipes shall be fixed to the outside of the external walls
of the building or in recesses^ or chases cut or frame in such external wall.
Work to the extent necessary for supporting the rainwater fittings
properly in position shall be completed before the person entrusted wiUx
the job of fixing rainwater gutters and pipes starts his work. Any plaster
finish in building work near the location of the downpipe shah be
completed before fixing of the downpipe. Hold fasts and clamps for the
pipes may also preferably be fixed to the wall before plastering^ so as to
avoid disturbing the plaster finish later.

7. FIXING DETAILS
7.1 Rainwater Gutters

T,1A Asbestos Cement Gutters — Gutters shall be laid with a minimum
fall of I in 150 which should be increased where possible. Gutters shall
be true to line and slope and shall be laid with the requisite accessories
such as drop ends, stop ends, nozzles, angles and union clips as directed.
The size of outlet of drops ends and nozzles shall be same as the size of
the rainwater pipes into which they discharge water. The requisite slope

10

IS t 2527* 1984

in the gutter shall be given in the line of brackets. The bracjcets shall
be placed at not more than 900 mm centre.

7.1.1.1 Socketed gutters shall be supported with a bracket close to
the socket and another in the centre of the gutter. Plain-ended gutters
shall be supported with a bracket on either side of each joint; and for
gutters of large size, one extra supporting bracket in the centre of the
gutter shall be fixed.

7.1.1.2 Brackets shall be fabricated from mild steel flats and mild
steel rods (^^eFig. 4). All brackets shall be provided with, a suitable
means of securing the gutters in position at the back.

MS ANGLE OR
WOODEN PURUN

MS GUTTER CLAMPS

ONE ON EITHER SIDE

OF CLIP JOINT

VALLEV
GUTTER

BaTS

-MS ROUND BAR
MOOKEO AT ONE
END AND THREAOEO
AT OTHER

-MS FLAT

AA VALLEY GLTTTER

MS ANGLE OR
WOODEN PURUN

MS FLAT OUTTER
CLAMP.

HALF ROUND
GUTTER

48 HALF ROUND GUTTER

Fig, 4 Fixing of Asbestos Cement Gutters

7«1*1.3 The angular space between the socket and the spigot shall be
filled with a few turns of spun yarn soaked in bitumastic jointing
compound* It shall be pressed home by means of a caulking tool. More

11

IS $2527 -1984

skeins of yarn shall be wrapped, if necessary, and well rammed home.
The joint shall then be finished with bitumastic compound at an angle
of45^

7.1.2 Sheet Metal Gutters — These gutters shall be fabricated from
galvanized iron sheets not less than 1*25 mm in thickness and may be
stiffened with stays where necessary. The spacing of stays should not
exceed 400 mm. Stays of the tubular pattern shall be soldered in position
in the gutter.

7*1.2*1 Jointing — All joints shall be lapped and soldered for at least
40 mm in the direction of flow. In case where the joints are soldered, the
jointing faces of sheet metal gutters shall be primed with solder to ensure
running of the jointing metal. Soldering of the resulting joint throughout
the full girth of the gutter and to the full extent in the lap shall be
ensured. Jointing may also be done by press-folding of the jointing faces.

7.1.2.2 Fixing — Gutter shall be laid with a minimum fall of 1 in
150. All gutters shall be supported at centres not exceeding 750 mm and
supporting brackets or screws shall normally coincide with alternate stays.
Where brackets are to be fixed to the side of rafters, they shall be bent to
shape and fixed rigidly to the sides of rafter with 10 mm dia bolt.
The brackets shall lap with rafter not less than 300 mm and connecting
bolts shall be at 120 mm centres. Where the brackets are to be fixed to
the purlins the brackets shall be bent to shape with one end turned at
right angle and fixed to the purlin face with 10 mm dia bolt, nut and
washer. The perpendicular over hung portion of the bent to shape shall
be fixed to the brackets with 2 No. 6 mm dia bolt. The requisite slope in
the gutter shall be given in the line bracket. The brackets shall be placed
at not more than 1 200 mm. For connection to down take pipes, a proper
drop end or funnel shaped connecting piece shall be made out of sheet
of the same thickness as the gutter and riveted to the gutter the other
end tailing into the socket of the rainwater pipe. The gutter when fixed
shall be true to line and slope and shall be water-tight.

7.2 Rainwater Pipes

7.2.1 Cast Iron Pipes — The pipes and fittings shall be fixed in vertical
alignment unless otherwise specified. The pipe and fittings shall be
secured to the walls. Wooden cleats shall be inserted so that the pipes
and fittings are kept at a distance of not less than 30 mm from the wall to
facilit^e cleaning, painting, etc. If not provided with lugs, the pipes
shall be secured to the wall at all joints by means of mild steel or cast
iron holder bat clamp {see IS : 1230-1979* ). Pipes which are provided

^Speciiciition for cast iron tAiawater pipes and fittings ( sic^nd rmsion) .

12

18:2527-19%

with suitable lugs may be directly fixed to the wall by means of screws
inserted into suitable wall plugs {see Fig. 5 )•

7,2.2 Asbestos Cement Pipes — The pipe and fittings shall be fixed in
vertical alignment unless otherwise specified. The pipe and fittings shall
be secured to the walls with mild steel holder bat clamps in the same
manner as given in 7.2.1 for cast iron pipes.

SPUN WRN SOAKED
IN BITUMASTIC
JOINTING COMPOUND -

LIME MORTAR

STRIP ALL -

ROUND

INSPECTION
EYE MOLE

COPING

GRATING
ROOT FINISH

DFTAIL FOR JOINT

J'

DETAIL OF BRACKET
FOR FIXING

Fig. 5 A Typical Detail Showing Fixing of Downpipes to
Wall For Roof Drainage

7.2.2.1 Jointing — The annular space between the socket and the
spigot shall be filled with spun yarn soaked in bitumastic jointing
compound. It shall be pressed home by means of a caulking tool. More
skeins of yarn shall be wrapped, if necessary, and well rammed homes

13

IS : 2527 - 1984

The joint shall then be finished with bitumastic compound at an angle
of 45'.

7.2,3 Sheet Metal Pipes — The pipes shall be held by clamps fixed to the
structure by means of wood screw inserted into suitable wall plugs.
Where it is required to fix the pipe clear of the wall, a hardwood block
shall be used and shall be secured in place by screws inserted into
suitable wail plugs. The overall size of the block shall be the same as
that of the *ears' of the pipe so a$ to afford full support to their entire
surface (see Fig 6)

-ROOF COVERING

MAIN RAFTER

WOODEN BATTEN

SHEET METAL
GUTTER

STEEL BRACKETS
(AT SuiTAgLr

INTERVALS)

SHEET METAL
PIPE

30 mm mt

Fig.

6 A Typical Detail of Fixing of Sheet Metal
Gutters and Downpipes for Sloped Roof

8. INSPECTION AND MAINTENANCE

8.1 All gutter pipes and sockets shall be carefully examined for defects
before they are installed and also on completion of the work. Each pipe
shall be rung with a hammer or mallet and those that do not ring true
and clear be rejected. Sound pipes shall be carefully stored to prevent
damage and blockage. Cast iron pipes shall be carefully examined for
damage of protective coating.

8.2 The gutters and pipe shall be inspected at regular intervals and any
defect discovered shall be made good.

14

IS : 2527 - 1984

( Gmtinued/rom page 2 )

Members Representing

Shri S. K. Chanda Public Works Department, Government of West

Bengal, Calcutta
Chief Architect Central Public Works Department, New Delhi

Senior Architect ( H and T? ) II ( Alternate )
Shri G. K. Damani Alumiliie Pvt Ltd, Calcutta

Shri V. Mishra ( Alternate )
Shri S. P. Gupta Hindustan-Pilkington Glass Works Ltd, Calcutta

Shri C. V. Ghalam ( Alternate )
Shri T. N. Gupta Central Building Research Institute (CSIR ),

Roorkee

Shri N, K. Sakghahi ( Alternate )
Shri G: R.Joshi Concrete Association of India, Bombay

Shbi p. Srinivasan ( Alternate )
Shri R. L. Kumar The Institution of Surveyors, New Delhi

Shri P.J. Mkhta ihe Institution of Engineers ( India ), Calcutta

Shri B. Natarajan Kent Ceramic Tiles Co Pvt Ltd, Madras

Shri K. S. pRUTHi Forest Research Institute and Colleges, Dehra

Dun
Shri H, K. Rakhra Engineer-in-Chief 's Branch, Army Headquarters,

New Delhi

Shri J. Ramamurthy ( Alternate )
Shri K. S. SriHIvaSan National Buildings Organization, New Delhi

Shri A. K. Lal ( Alternate )
Shri Subrato Rat Balmer Lawrie and Co Ltd, Calcutta

Shri K. StTRTANARAYANAK Indian Aluminium Company Ltd, Calcutta

Shri Akjan Sen ( Alternate )

INDIAN STANDARDS

ON

COVERING, V£N££RING AND GLAZING

IS:

1414-1962 Code of practice for fixing wall coverings

1649-1962 Code of practice for design and construction of flues and chimneys for

domestic heating appliances {first revision )
1946-1961 Code of practice for use of fixing devices in walls, ceilings and floors of solid

construction
2441- 1963 Code of practice for fixing ceiling covering
2527-1984 Code of practice for fixing rainwater gutters and downpipes for roof

drainage ( first revision )
3548-1966 Code of practice fot glazing in buildings
4101 ( Part 1 )-1967 Code of practice for external facing and veneers: Part 1 Stone

facing
1401 ( Part 2 )-1967 Code of practice for external facing and veneers: Part 2 Cement

concrete facing
4101 (Part3)-1968 Code of practice for external facing and veneers: Part 3 Wail

tiling and mosaics
4407-1967 Code of practice for reed walling
5119 ( Part 1 )-1968 Code of practice for laying and fixing of slopped roof coverings:

Part 1 Slating
10439-1983 Code of practice for patent glazing

STANDARDS
IIVSTJTUTION

M«nAk Qhavdn, 9 Bahatiw Sh^h Zaf ar U\nrq
NEW DELHJ Tt0002

331 1375

'W.Btem r Marakitava. E9 MiOC. Mirol

An-dhuri (East)

eOM&AY 400093
tEisrern : VH C. I. I. Srhflin* VH M

V-J.P. RQsd, Maswkioia

CALCUTTA 700054

NnrThPm ; SCO 445 446, Sfietgr 35-C

CHAWDIGARH1S0036

felflhgrama ;
f -ommon

Scutharn

C f. T, Campus
MADRAS 600113

B' ancft Offices:

Puahptk', NurmohametJ Shaikih Maffl. Khanpuf
AHMADABAD 380001

F BIdcIl Unjtv BMg, tjarafiimharaja Square

BANGALORE 5S0002
Ganeoui CqcTiDteK, Sm f^loor. Bfiadbfiada Road. T T. Naaaf

B NOPAL 46Z003
Pfol No, 82/83. Ivwis RaaiJ. BHUBANeSHWAR 751002
6 3/6 Ward No. 29. a. 5. Bartjs Road. 5th eyeFsn$

GUWAHATf 781O03
5 -a -sec L N. Gypta Marg. HrD£RABAD SQOOQI

R14 Yudhrstet Marg, C SchamB, JAfTUR 302005

117/418 B Sarwodaya Nauai, KAN PUR 206006

fslhputt^ InduBTrial E»ta|fl. PATNa 300013

Hiint-jjc BIdg ^2fixi FJooO- ^W Staitoq Road, TRIVANDRUWI 635001

ffispmelittn Omca fWilh 5dl« Poinfl:

Fnsntution ^^^^^fj^^^) BiJIItlinH, 1332 SfiLvaji Nastr
runiE 41 1 uuS

Manaksinsrha

tQ Ell Offl^pp J

G 32 92 as

I

[ 2 18 43
[ 3 16 41

41 ^4 42
41 25 t9
41 29 16

03 46
2 33 49

22 49 OB
€67 16
S3e27

{

{

23 10&3
6 34 71

21 68 76

21 82 92

6 23 05

62 27

6 24 35

B5 66 2a

27 ee 00

RMi^ToduCeii bj Heprograpr,, Unit. iSN Ns* DelhJ